Your model 140120 uses the HDC1 Essick Air HDC1 Moist Air Wick Filter - 2 Pack The Essick Air HDC1 Moist Air Wick Filter Replacement is a replacement humidifier filter that is compatible with all Emerson MoistAir HD series humidifier models, as well as several models from Sears Kenmore. This wick filter traps water minerals an